P0456 on the 2016 Dodge Dart
The bulletins listed name this code in NHTSA's summary, or are about the same components. A bulletin or a recall listed here may apply to the model year. None of it is a diagnosis.
Nobody has written a description of this code yet.
| 1804823 | 2023-05-30. Service bulletin. wiTECH Small Leak Verification Test (SLVT) - P0456-EVAP SYSTEM SMALL LEAK |
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| 1805816 | 2022-12-19. Service bulletin. Flash: 2.0L Diagnostic And System Improvements This bulletin involves reprogramming the Powertrain Control Module (PCM) with the latest software. A small number of customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more of the following Diagnostic Trouble Codes (DTCs): · **P0335-00 - Crankshaft Position Sensor Circuit.** · P0456 - EVAP System Small Leak. · P2610 - PCM Internal Engine Off Timer Performance. · P1607 - PCM Internal Shutdown Timer Rationality. In addition to the above DTCs, this software release also includes: · Enhancements to the disable misfire monitor when P0335 (Crankshaft Position Sensor Circuit) is present. · Re-Activation of Electronic Throttle Control (ETC) (2.0L MTX only). · Engine oil temperature gauge calibration enhancement. |
| 1800916REVA | 2022-12-19. Service bulletin. Flash: 2.4L Powertrain Diagnostic and System Improvements This bulletin involves reprogramming the Powertrain Control Module (PCM) with the latest available software. A small number of customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find the following Diagnostic Trouble Codes (DTCs) set in the PCM memory: · **P1185 - General Pressure Sensor Correlation.** · P0335 - Crankshaft Position Sensor Circuit. · P050D - Cold Start Rough Idle. · P0456 - Evap System Small Leak. · P0133 - O2 Sensor 1/1 Slow Response (additional enhancements). · P2610 - PCM Internal Engine Off Timer Performance. · P1607 - PCM Internal Shutdown Timer Rationality. **In addition to the above DTCs, this software release also includes these enhancements/corrections: · A ?Clunk feeling" when depressing the gas pedal after a coasting maneuver when Decel Fuel Shut Off (DFSO) is enabled and is exiting during pedal tip-in.** · False reading that the engine is overheating based on the engine oil temp gauge read out. · Improved ambient temperature sensor diagnostics during sunload. · Disable misfire monitor when P0335 (Crankshaft Position Sensor Circuit) is present. · Engine oil temperature gauge level recalibration to avoid the misperception of an engine overheating condition. |
| 1808919 | 2022-09-15. Service bulletin. wiTECH Small Leak Verification Test (SLVT) - P0456-EVAP SYSTEM SMALL LEAK |
| 18-058-16 | 2020-10-26. Service bulletin. Flash: 2.0L Diagnostic And System Improvements This bulletin involves reprogramming the Powertrain Control Module (PCM) with the latest software. A small number of customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more of the following Diagnostic Trouble Codes (DTCs): · **P0335-00 - Crankshaft Position Sensor Circuit.** · P0456 - EVAP System Small Leak. · P2610 - PCM Internal Engine Off Timer Performance. · P1607 - PCM Internal Shutdown Timer Rationality. In addition to the above DTCs, this software release also includes: · Enhancements to the disable misfire monitor when P0335 (Crankshaft Position Sensor Circuit) is present. · Re-Activation of Electronic Throttle Control (ETC) (2.0L MTX only). · Engine oil temperature gauge calibration enhancement. |
| 18-009-16 REV. A | 2020-10-26. Service bulletin. Flash: 2.4L Powertrain Diagnostic and System Improvements This bulletin involves reprogramming the Powertrain Control Module (PCM) with the latest available software. A small number of customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find the following Diagnostic Trouble Codes (DTCs) set in the PCM memory: · **P1185 - General Pressure Sensor Correlation.** · P0335 - Crankshaft Position Sensor Circuit. · P050D - Cold Start Rough Idle. · P0456 - Evap System Small Leak. · P0133 - O2 Sensor 1/1 Slow Response (additional enhancements). · P2610 - PCM Internal Engine Off Timer Performance. · P1607 - PCM Internal Shutdown Timer Rationality. **In addition to the above DTCs, this software release also includes these enhancements/corrections: · A ?Clunk feeling" when depressing the gas pedal after a coasting maneuver when Decel Fuel Shut Off (DFSO) is enabled and is exiting during pedal tip-in.** · False reading that the engine is overheating based on the engine oil temp gauge read out. · Improved ambient temperature sensor diagnostics during sunload. · Disable misfire monitor when P0335 (Crankshaft Position Sensor Circuit) is present. · Engine oil temperature gauge level recalibration to avoid the misperception of an engine overheating condition. |
| 18-089-19 | 2019-12-16. Service bulletin. wiTECH Small Leak Verification Test (SLVT) - P0456-EVAP SYSTEM SMALL LEAK |
| 18-106-15 REV A | 2019-05-20. Service bulletin. Flash: 2.0L Diagnostic And System Improvements This bulletin involves reprogramming the Powertrain Control Module (PCM) with the latest software. A small number of customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more of the following Diagnostic Trouble Codes (DTCs): ? P0456 - EVAP System Small Leak. ? P2610 - PCM Internal Engine Off Timer Performance. ? P1607 - PCM Internal Shutdown Timer Rationality. In addition to the above DTCs, this software release also includes: ? This software release includes improving the disable misfire monitor when P0335 (Crankshaft Position Sensor Circuit) is present. ? Re-Activation of Electronic Throttle Control (ETC) (2.0L MTX only). ? Engine oil temperature gauge calibration enhancement. |
| 18-076-15 REV A | 2019-05-20. Service bulletin. Flash: 2.4L Powertrain Diagnostic and System Improvements This bulletin involves reprogramming the Powertrain Control Module (PCM) with the latest available software. A small number of customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find the following Diagnostic Trouble Codes (DTCs) set in the PCM memory: ? P0456 - Evap System Small Leak. ? P0133 - O2 Sensor 1/1 Slow Response (additional enhancements). ? P2610 - PCM Internal Engine Off Timer Performance. ? P1607 - PCM Internal Shutdown Timer Rationality. In addition, some customers may describe that the engine is overheating based on the engine oil temp gauge read out. Software improvements include: ? Improved ambient temperature sensor diagnostics during sunload. ? Disable misfire monitor when P0335 (Crankshaft Position Sensor Circuit) is present. ? Engine oil temperature gauge level recalibration to avoid the misperception of an engine overheating condition. NOTE: Reprogram the PCM if P0335 is present along with engine misfire DTCs. |
| 18-106-15 | 2019-05-20. Service bulletin. Flash: 2.0L Diagnostic And System Improvements This bulletin involves reprogramming the Powertrain Control Module (PCM) with the latest software. A small number of customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more of the following Diagnostic Trouble Codes (DTCs): ? P0456 - EVAP System Small Leak. ? P2610 - PCM Internal Engine Off Timer Performance. ? P1607 - PCM Internal Shutdown Timer Rationality. In addition to the above DTCs, this software release also includes an engine oil temperature gauge calibration enhancement. |
14 on file from NHTSA, as of 2026-10-19. See them in the bulletin list. A bulletin lists model years: read the document for which vehicles it concerns.